30343431 has 4 divisors (see below), whose sum is σ = 40457912. Its totient is φ = 20228952.

The previous prime is 30343409. The next prime is 30343471. The reversal of 30343431 is 13434303.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30343431 - 2⁷ = 30343303 is a prime.

It is a super-2 number, since 2×30343431² = 1841447609703522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30343398 and 30343407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30343471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5057236 + ... + 5057241.

It is an arithmetic number, because the mean of its divisors is an integer number (10114478).

Almost surely, 2^30343431 is an apocalyptic number.

30343431 is a deficient number, since it is larger than the sum of its proper divisors (10114481).

30343431 is a wasteful number, since it uses less digits than its factorization.

30343431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114480.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 30343431 is about 5508.4871788904. The cubic root of 30343431 is about 311.9044435343.

Adding to 30343431 its reverse (13434303), we get a palindrome (43777734).

It can be divided in two parts, 303 and 43431, that added together give a palindrome (43734).

The spelling of 30343431 in words is "thirty million, three hundred forty-three thousand, four hundred thirty-one".